Mitutoyo 2358AB-10 Dial Drop Indicator 0.5 in Jeweled

Product Description

The MITUTOYO 2358AB-10 is a dial drop indicator designed for precision dimensional measurement in metrology, machining, and quality control applications. It delivers a measuring range of 0.5 inches with a graduation of 0.0001 inches per division and 0.01 inches per revolution, providing the resolution required for tight-tolerance inspection work. The indicator features a jeweled bearing mechanism for smooth, repeatable stylus travel and carries an accuracy rating of 0.0001 inches. A built-in revolution counter tracks cumulative travel across the full range. This instrument is installed and used by machinists, toolmakers, quality technicians, and calibration specialists.

The 2358AB-10 is suited for surface plate work, fixture inspection, runout checks, and comparative gauging on machine tools. Its flat back mounting style allows it to seat securely against standard indicator holders and magnetic bases. The 0-10 dial reading on a white 57 mm diameter face provides clear, high-contrast readout under typical shop floor lighting. The 3/8 inch stem diameter fits the majority of standard indicator holders used in CNC and manual machining environments.

Key Features

• 0.5 inch total measuring range with 0.01 inches per revolution
• 0.0001 inch graduation for high-resolution dimensional inspection
• Jeweled bearing construction for consistent stylus force and long service life
• Built-in revolution counter for tracking cumulative travel
• Flat back design for compatibility with standard indicator holders and magnetic bases
• Meets ANSI/AGD standards for dial indicator performance

Compatibility

Designed as a standard AGD Group 0 dial drop indicator compatible with 3/8 inch stem indicator holders and magnetic base setups common in metrology and machine tool environments.

Installation Notes

Installation is performed by machinists, toolmakers, or quality technicians using a standard indicator holder or magnetic base that accepts a 3/8 inch stem. Ensure the holder clamp is secure but do not overtighten, as excessive clamping force on the stem can affect repeatability. Verify the stylus contact point is appropriate for the workpiece material and geometry before use. Handle the indicator carefully to avoid shock loads to the jeweled bearing mechanism.